/* ---------------------------------------------------------------
   Theodor Balan — personal site
   Sharp / technical minimalism. System fonts only, no CDN deps.
--------------------------------------------------------------- */

:root {
  --bg: #ffffff;
  --bg-raised: #f6f6f7;
  --text: #16181d;
  --text-muted: #5b6169;
  --text-faint: #9aa0a8;
  --border: #e3e5e8;
  --accent: #0d7d75;
  --accent-text: #ffffff;
  --shadow: 0 1px 2px rgba(16, 18, 22, 0.04);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Menlo", "Consolas", "Liberation Mono", monospace;

  --measure: 40rem;
  --radius: 3px;
}

:root[data-theme="dark"] {
  --bg: #0d0f12;
  --bg-raised: #16191d;
  --text: #e7e9ec;
  --text-muted: #9aa1ab;
  --text-faint: #656c76;
  --border: #262a30;
  --accent: #35c2b6;
  --accent-text: #0d0f12;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d0f12;
    --bg-raised: #16191d;
    --text: #e7e9ec;
    --text-muted: #9aa1ab;
    --text-faint: #656c76;
    --border: #262a30;
    --accent: #35c2b6;
    --accent-text: #0d0f12;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.15s ease, color 0.15s ease;
}

a {
  color: var(--text);
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
}
a:hover { color: var(--accent); text-decoration-color: var(--accent); }

::selection { background: var(--accent); color: var(--accent-text); }

/* ---------- layout ---------- */

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- header ---------- */

header.site {
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-title {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.site-title:hover { color: var(--text); }
.site-title .dot { color: var(--accent); }

nav.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

nav.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.2rem 0;
  border-bottom: 1px solid transparent;
}
nav.site-nav a:hover,
nav.site-nav a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

#theme-toggle {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  padding: 0.3rem 0.55rem;
  cursor: pointer;
  line-height: 1;
}
#theme-toggle:hover { color: var(--text); border-color: var(--text-faint); }

/* ---------- main / footer ---------- */

main {
  padding: 3.5rem 0 5rem;
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}
footer.site .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}
footer.site a { color: var(--text-faint); }

/* ---------- typography ---------- */

h1, h2, h3 {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--text);
}

h1 { font-size: 1.6rem; margin: 0 0 0.4rem; }
h2 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 2.75rem 0 1.1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}
h2:first-child { margin-top: 0; }

p { margin: 0 0 1.1rem; color: var(--text); }
.lede { color: var(--text-muted); font-size: 1.02rem; }

.tagline {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1.75rem;
}

/* ---------- home / hero ---------- */

.hero {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.avatar {
  width: 68px;
  height: 68px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  flex-shrink: 0;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }

.hero-text h1 { margin-bottom: 0.3rem; }

.status-line {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 1.75rem 0 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  flex-shrink: 0;
}

/* ---------- links row (social) ---------- */

.links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0.5rem;
  margin: 0 0 0.5rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.links-row a {
  display: inline-block;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.35rem 0.65rem;
}
.links-row a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- CV ---------- */

.cv-entry {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.25rem 1.25rem;
  margin-bottom: 1.15rem;
}
.cv-entry:last-child { margin-bottom: 0; }

.cv-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  padding-top: 0.15rem;
  white-space: nowrap;
}

.cv-role { font-weight: 600; }
.cv-org { color: var(--text-muted); }
.cv-detail {
  color: var(--text-faint);
  font-size: 0.9rem;
  margin-top: 0.15rem;
}
.cv-detail a { color: var(--text-faint); text-decoration-color: var(--border); }
.cv-detail a:hover { color: var(--accent); }

.skill-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.skill-row:last-child { border-bottom: none; }
.skill-label { color: var(--text-muted); }
.skill-value { font-family: var(--font-mono); font-size: 0.85rem; text-align: right; }

.skill-value .lvl-3 { color: var(--text); }
.skill-value .lvl-2 { color: var(--text-muted); }
.skill-value .lvl-1 { color: var(--text-faint); }

/* ---------- contact ---------- */

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}
.contact-list li {
  display: flex;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.contact-list li:first-child { border-top: 1px solid var(--border); }
.contact-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  width: 5.5rem;
  flex-shrink: 0;
}
.contact-list a { text-decoration: none; }
.contact-list a:hover { text-decoration: underline; }

/* ---------- misc ---------- */

.stub-note {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-faint);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

@media (max-width: 480px) {
  .site-header-inner { flex-direction: column; align-items: flex-start; gap: 0.85rem; }
  nav.site-nav { width: 100%; gap: 0.5rem 0.9rem; }
  .cv-entry { grid-template-columns: 1fr; }
  .cv-date { padding-top: 0; }
  .hero { flex-direction: column; }
}